Hay fever, drug allergies, food allergies, and eczema are all types of :
a. Immediate hypersensitivity
b. Delayed hypersensitivity
c. Anaphylactic reactions
d. Angioneurotic edema
a
Rationale: a. Correct.
b. Delayed hypersensitivity reactions are most often characterized by a skin rash and occurs days after exposure.
c. Anaphylactic reactions are severe and life -threatening.
d. Edema that occurs in the face and skin and is usually very apparent.
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Croup is a:
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